The wellness and supplements industry is big business, but new scientific research suggests a much cheaper way to live longer. Dr Binh Nguyen, who led the in-depth study, explains to Harry Bullmore how women can cut their risk of premature death by more than half – and have a better quality of life L iving longer has always occupied the human psyche – just look at history’s many Lazarus-inspired stories. But it has become something of an obsession in recent years. Consider Bryan Johnson , the